Charles haywaed



(No Medel.)

C. HAYWARD.

- SCREEN POR WINNOWBRS.

No. 370,139. Patented Sept. 20, 1887.

T95.' I ze' Y 13947 \l 4 7@ www@ Ir'f .ne el" .fie en .fe en en en ffW/'f-NESSES an a 2 LvwfNm/e.

M /4 @Mmmm btw/Ewald, D "4 A TTU/UVE Y.

Nv PETERS. mwumognpher, wmington, DAC,

Nirnn STATES ATnNi OFFICE.

CHARLES HAYVARD, OF PINE LODGE, NEAR SHEPPARTON, VICTORIA,

AUSTRALIA.

SCREEN FOR SPECIFICATION forming part of Letters Patent No. 370,139,dated September 20, 1887.

Application iiled December 17, 1885. Serial No. 185,877.

To @ZZ whom it may concern:

Be it known that I, CHnRLEs HAYWARD, a subject of the Queen of GreatBritain, residing at Pine Lodge, near Shepparton, in the British Colonyof Victoria,A.ustralia, farmer, have invented an Improved Screen forWinnowers, (that an application for patent was led in the British Colonyof Victoria, Australia, on the 1st day of October, 1885, and numbered4,254, that under the laws governing the grant of patents in said colonythe Letters Patent bear date as of the day of filing, and that up to thepresent time the patent on said application filed in said colony has notbeen granted) of which the following is a specification.

This invention has been designed for the purpose of providing a screenfor winnowers and other graincleaning machines,which will allow thegrain to fall through it onto the shaking-riddles, while the straw andWaste is carried over it. It is made in the form of a louver-frame,either wood or metal, and is placed immediately above the riddles orattached to the riddle-frame, so that when the material to be winnowedis fed onto it from the hopper and is subjected to the action of thefanners the grain strikes against the louvers and falls by gravitybetween them, while the straw and other larger and lighter materials areblown over it.

The screen consists of a number of louvers, each having one or morepins, but by preference two at each end. The upper one of these pins iscentered in the top half of a divided frame, while the lower one iscentered in the lower half, so that by lowering the one half of theframe from the other the width of the spaces between the louvers isincreased. The screw is placed so that the louvers fall toward thefanners. I also provide means for securing the frames in the severalpositions to alter the width of the spaces between the louvers by meansof a slotted plate pivoted to the upper frame, and held in any desiredposition by means of a screw-pin passing through the slot in thelowerframe, and provided with a thumb- (No model.) Patented in VictoriaOctober 1, 1885, No. 4,254.

nut for holding the slotted plate in the desired position.

The accompanying drawings form part of this specification, andillustrate what I consider the best means of carrying out my invention.

Referring to the drawings, Figurel is a plan of my improved screen. Fig.2 is a longitu- Fig. l. Fig. 3 is a similar view, .but showing thelouvers in their altered position. Fig. 4 is an end view of the same,and Fig. 5 is a side View of one of the louvers.

Similar letters of reference are employed to indicate like parts in allthe figures.

A A are the louvers, (shown constructed by preference of metal,) and Aare the projecting pins at their ends, the upper ones of which arecentered in the holes in the top frame, B, while the lower pins arecentered in the lower frame, B. a

Bz B2 are the cross-bars forming the ends of. the top frame,and C C arethe slides secured to the side ofthe frame for supporting it in the sidecheeks of a riddle.

D is a slotted plate centered at D to the top frame, and D2 thethumb-nut of a screw the pin of which passes through said slotted plateand through the lower frame, B. E are arrows denoting the course of thematerial which is fed to the same.

The position of the louvers A is regulated by raising or lowering theframe B. When the frame B is raised, as shown by Fig. 2, the

resistance is presented to the passage of the grain to be winnowed,while,when the frame B is lowered, as shown by Fig. 1, a more directcourse is open for the passage of the same.

When the frame B is raised or lowered, as desired, it is held for thetime being permanently in position by the thumb-nut D2 of thebinding-screw, the pin of which, as described, passes through theslotted plate D and the lower frame, B.

Having now particularly described and ascertained the nature of my saidinvention and dinal section of it, looking from the line c a,

position of the louvers Ais such that a greater in what manner the sarneis to be performed,V pvoted to the upper frame, B, and adj ustably whatI claim, and desire to secure by Letters secured to the lower frame, B',the Whole being ro Patent, is constructed and arranged substantially asA screen embodying in its construction a shown and described. i 5 frame,B, a vertieellyedjustable frame, B', a CHARLES HAYWARD.

series of louvers pivoted at their opposite Vitnesses: faces to theframes B and B', as described, and WALTER SMYTHE BAYsToN, a slottedadjusting and retaining plate, D, PEROIVAL AUGUSTUS SMITH.

